1. Create a new drawing board, black rectangle drawn as a background.
2. Draw a star
3. Set the stroke color and stroke size of the star, using the Direct Selection tool to select the star path, the corner is set to 30px.
4. Stroke star set the background color to green radial gradient
5.ctrl + c ctrl + f and reduced copy-paste
6. Set outermost flowers fade to green to blue
7. The second layer is disposed graded green to black
8. Set the Blending Options
9. Select all paths ctrl alt b perform hybrid
10. Check all paths, using the results - and twist Transform - ripple effect
11. Effects - distortions and transformations - contraction and expansion
12. The contraction and expansion on the ripple effect on
13. Final results
Edit: Thousand Feng UI design